Articles | Volume 4, issue 2
https://doi.org/10.5194/esurf-4-461-2016
https://doi.org/10.5194/esurf-4-461-2016
Research article
 | 
09 Jun 2016
Research article |  | 09 Jun 2016

Armor breakup and reformation in a degradational laboratory experiment

Clara Orrú, Astrid Blom, and Wim S. J. Uijttewaal

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Cited articles

Andrews, E. D. and Erman, D. C.: Persistence in the size distribution of surficial bed material during an extreme snowmelt flood, Water Resour. Res., 22, 191–197, https://doi.org/10.1029/WR022i002p00191, 1986.
Bacchi, V., Recking, A., Eckert, N., Frey, P., Piton, G., and Naaim, M.: The effects of kinetic sorting on sediment mobility on steep slopes, Earth Surf. Proc. Land., 39, 1075–1086, https://doi.org/10.1002/esp.3564, 2014.
Bagnold, R. A.: The physics of blown sand and desert dunes, Methuen, New York, 1941.
Church, M., Hassan, M. A., and Wolcott, J. F.: Stabilizing self-organized structures in gravel-bed stream channels: Field and experimental observations, Water Resour. Res., 34, 3169–3179, https://doi.org/10.1029/98WR00484, 1998.
Clayton, J. A. and Pitlick, J.: Persistence of the surface texture of a gravel-bed river during a large flood, Earth Surf. Proc. Land., 33, 661–673, https://doi.org/10.1002/esp.1567, 2008.
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Short summary
Our study focuses on armor breakup and reformation in a laboratory experiment under conditions with limited sediment supply. We developed a novel technique that allows for measurement of the temporal and spatial changes of the bed surface texture during flow. The armor, which was formed under base flow conditions, broke up under a higher flow rate, which led to a fining of the bed surface and local degradation. Under continued peak flow a new armor formed that was coarser than the initial one.
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